required1
It is required that
【问】 It is required by law that a husband 
the debts of his wife 
formal noticeis given 
he no longer has 
(攻读硕士学位研究生入学考试英语试题，1993)
我认为选项A(have to pay)是错误的，应改为has to pay。
【答】 见demand that，pay。
赵振才 编著.英语常见问题解答大词典.哈尔滨：黑龙江人民出版社.1998.第980页.
- as a whole
- as do I/as I do
- a search for/of
- a set of
- as far as
- as far as
- as far as/so far as
- as follows/as follow
- as for/as to
- as good as
- ashamed/shamefaced
- as happens/as it happens
- aside from/apart from
- as if
- as if
- as if/as though
- as if expecting/to expect
- as if he
- as if I were/was
- as if you were/are
- as it is (was)
- as it were/as it was (is)
- ask
- ask
- ask about/ask after/ask for/ask of